Exception thrown in 1.5.13

Which OS ?

MacOs / android

Version

Which versions are you using:

• react-native-swiper v1.5.13
• react-native v0.47.1

To help us, please fork this component, modify one example in examples folder to reproduce your issue and include link here.

Cannot read property 'x' of undefined
_class._this.updateIndex
    index.js:398:53
_class._this.onScrollEnd
    index.js:363:9
<unknown>
    index.js:480:13
<unknown>
    JSTimers.js:262:17
_callTimer
    JSTimers.js:143:6
Object.callImmediatesPass
    JSTimers.js:443:8
Object.callImmediates
    JSTimers.js:459:20
MessageQueue.__callImmediates
    MessageQueue.js:244:13
<unknown>
    MessageQueue.js:128:11
MessageQueue.__guard
    MessageQueue.js:231:6

running swiper with

<Swiper
        autoplay
        autoplayTimeout={5}
        onMomentumScrollEnd={this.handleScrollEnd}
        renderPagination={this.pagination}
        showsButtons={false}
        style={styles.swiperContainer}
      >
        {renderSlides(this.state.slides)}
      </Swiper>

Had to downgrade to 1.5.3
It happens when demote debugging is enabled (if that is any help)

Reproduce the crash in an example under react-native-swiper 1.5.13 with React Native 0.47.1 and the shown Swiper props. Start at index.js lines 363, 398, and 480, especially onScrollEnd and updateIndex, then compare behavior with version 1.5.3. Done means the example no longer throws when remote debugging is enabled.